Service difficulty report · Valve · Bolkms BK117C2

Difficulty date
October 10, 2013
Submitted
October 11, 2013
Operation
Air carrier
Aircraft
N145SM
Make and model
Bolkms BK117C2
Aircraft serial
9298
Aircraft time
2,368 hours, 6,203 cycles
Engine
Tmeca ARRIEL1E2
Engine time
2,368 hours, 3,108 cycles
Part
Valve
Part number
017025120
Part serial
6262
Condition
Failed
Location
Lt Eng Fuel
Stage of operation
AA
How discovered
O
Nature of condition
K, B
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FOUND FUEL PRESSURIZING VALVE ON NR 2 ENGINE INOPERATIVE, ALLOWING TOO MUCH FUEL TO ENTER ENGINE AT START. RAW FUEL WAS BEING PUSHED THROUGH THE ENGINE ON START AND FLOWING INTO THE COWLINGS OF ACFT. IN FLIGHT THE TRAPPED FUEL WAS SEEPING OUT OF THE COWLINGS AND RUNNING DOWN THE REAR DOORS AND CAUSING A FUEL ODOR AND THE SIGHT OF FUEL ON THE AIRFRAME. FLIGHT WAS CANCELED ACFT RETURNED TO BASE.